Classifications

• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
  • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
  • G01P3/42—Devices characterised by the use of electric or magnetic means
  • G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
  • G01P3/443—Devices characterised by the use of electric or magnetic means for measuring angular speed mounted in bearings
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B61—RAILWAYS
  • B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
  • B61F15/00—Axle-boxes
  • B61F15/20—Details
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
  • F16C41/00—Other accessories, e.g. devices integrated in the bearing not relating to the bearing function as such
  • F16C41/007—Encoders, e.g. parts with a plurality of alternating magnetic poles
• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
  • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
  • G01P3/42—Devices characterised by the use of electric or magnetic means
  • G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
  • G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
  • G01P3/42—Devices characterised by the use of electric or magnetic means
  • G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
  • G01P3/48—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage
  • G01P3/481—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals
  • G01P3/487—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals delivered by rotating magnets
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
  • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
  • F16C19/22—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
  • F16C19/34—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load
  • F16C19/38—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers
  • F16C19/383—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone
  • F16C19/385—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone with two rows, i.e. double-row tapered roller bearings
  • F16C19/386—Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers with tapered rollers, i.e. rollers having essentially the shape of a truncated cone with two rows, i.e. double-row tapered roller bearings in O-arrangement
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
  • F16C2226/00—Joining parts; Fastening; Assembling or mounting parts
  • F16C2226/50—Positive connections
  • F16C2226/60—Positive connections with threaded parts, e.g. bolt and nut connections
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
  • F16C2326/00—Articles relating to transporting
  • F16C2326/10—Railway vehicles
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
  • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
  • F16C33/72—Sealings
  • F16C33/723—Shaft end sealing means, e.g. cup-shaped caps or covers
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
  • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
  • F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
  • F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
  • F16C35/06—Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing
  • F16C35/063—Fixing them on the shaft

Definitions

• This assembly is very specific and it is not possible to mount it on other types of bearings than the one for which it is initially planned. In particular it is not possible to mount it on standard casing bearings.
• the rocket cap and / or the support protect the encoder ring against mechanical shocks, and this throughout its life: from storage before assembly, during assembly, during its use, then its eventual disassembly, renovation and subsequent reassembly.
• the solution without support offers the advantage of simplicity, the number of parts being reduced.
• the alternative with support however allows in some cases a better protection against shocks.
• the proposed solution fits all types of bearings; it allows to repair or renovate many existing assemblies by replacing parts, and this in a simple way.
• the magnetic encoder ring is fixed radially outside the skirt of the rocket cap and covers at least partially the skirt of the rocket hat. Therefore, the skirt of the rocket cap is not likely to constitute a magnetic screen between the magnetic encoder ring and a sensor located opposite the encoder, radially outside the rocket cap.
• the encoder ring can be fixed on a wall of the skirt of the rocket cap turned radially inwardly.
• the encoder ring can also be fixed on the support facing an inner wall of the skirt of the rocket cap.
• the rocket cap is made of non-magnetic material.
• a rocket cap extending axially outside the inner ring, the rocket cap having a bottom provided with at least one through hole and a skirt provided with a distal end in direct or indirect axial bearing on the inner ring, the rocket cap having a larger outside diameter D1, and
• the encoder ring can be attached to an annular support fixed to the rocket cap. According to various variants:
• the outer ring 18 is mounted in a cylindrical housing 12.1 of the axle box 12, closed by a cover 12.2 which covers the rocket cap 26.
• the rings 16A, 16B and 18 delimit between them a volume 14.1 for the rolling bodies, which volume is closed axially by sealing systems 32A, 32B, constituted in this example by deflectors defining between them, without contact, a pressure drop or baffle limiting the penetration of pollutants into the bearing and the lubricant outlet. Also shown in Figure 1 a channel 34 for regularly reloading the bearing lubricant.
• FIGS. 7 to 10 are distinguished from the previous ones by the fact that the encoder ring 36 is fixed directly on the rocket cap 26.
• an at least partially nonmagnetic cover 42 having a skirt 42.1 which comes to slip on the rocket cap and completely close the housing groove 26.7 of the encoder ring, as shown on FIG. 8.
• the skirt is provided to be extended by a flat wall 42.2 which, in the mounted position, is pinched between the rocket cap and the bearing. .
• FIG 14. An alternative embodiment of the previous embodiment is shown in Figure 14.
• the encoder 36 is this time fitted on the outer wall of the rocket cap 26, near its axial end and covered by the non-magnetic skirt 50.5 of the lock washer 50.
• the brushes 60.3 of the current collector 60 integral with the cover 12.2 of the axle box, come into rubbing contact on the plate, which is part of the rotating assembly integral with the axle, to constitute an electrical path for the current electric circulating between the rails, and the electrical equipment of the vehicle.
• Figures 20 to 23 illustrate various variants for ensuring the mechanical strength of the encoder 36 for a long time in a severe environment from the point of view of shock and vibration.

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• Physics & Mathematics (AREA)
• General Physics & Mathematics (AREA)
• Engineering & Computer Science (AREA)
• General Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Transmission And Conversion Of Sensor Element Output (AREA)
• Vehicle Body Suspensions (AREA)

Applications Claiming Priority (2)

Publications (1)

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Family Applications (1)

Country Status (6)

Families Citing this family (5)

Family Cites Families (9)

• 2010
  • 2010-04-30 FR FR1001870A patent/FR2959541B1/fr active Active
• 2011
  • 2011-04-29 EP EP11722848A patent/EP2564208A2/de not_active Withdrawn
  • 2011-04-29 KR KR1020127030265A patent/KR20130098868A/ko not_active Application Discontinuation
  • 2011-04-29 RU RU2012151276/11A patent/RU2012151276A/ru not_active Application Discontinuation
  • 2011-04-29 WO PCT/FR2011/000266 patent/WO2011135209A2/fr active Application Filing
  • 2011-04-29 CN CN201180021572.2A patent/CN102893163B/zh not_active Expired - Fee Related

Non-Patent Citations (2)

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